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A high-power cw all-solid-state Nd:GdV04 laser operating at 880 nm is reported.The laser consists of a low doped level Nd:GdVO_4 crystal dual-end-pumped by two high-power diode lasers and a compact negative confocal unstable-stable hybrid resonator.At an incident pump power of 820 W,a maximum cw output of 240 W at1064 nm is obtained.The optical-to-optical efficiency and slope efficiency are 40.7%and 53.2%,respectively.The M~2 factors in the unstabie direction and in the stable direction are 4.38 and 5.44,respectively.
A high-power cw all-solid-state Nd: GdV04 laser operating at 880 nm is reported. The laser consists of a low doped level Nd: GdVO 4 crystal dual-end-pumped by two high-power diode lasers and a compact negative confocal unstable-stable hybrid resonator. An incident pump power of 820 W, a maximum cw output of 240 W at 1064 nm was obtained. The optical-to-optical efficiency and slope efficiency are 40.7% and 53.2% respectively. M ~ 2 factors in the unstabie direction and in the stable direction are 4.38 and 5.44, respectively.